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| author | Rohit Ner <rohitner@google.com> | 2024-02-20 01:56:37 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-03-10 17:10:15 -0400 |
| commit | 767712f91de76abd22a45184e6e3440120b8bfce (patch) | |
| tree | 23970dbcb3724bc41d967f2272add8cf95918ab0 /drivers/ufs/core | |
| parent | 517bcc2b4db435f230fe864f3db0a0f21d2f6951 (diff) | |
| download | linux-stable-767712f91de76abd22a45184e6e3440120b8bfce.tar.gz linux-stable-767712f91de76abd22a45184e6e3440120b8bfce.tar.bz2 linux-stable-767712f91de76abd22a45184e6e3440120b8bfce.zip | |
scsi: ufs: core: Fix MCQ MAC configuration
As per JEDEC Standard No. 223E Section 5.9.2, the max # active commands
value programmed by the host sw in MCQConfig.MAC should be one less than
the actual value.
Signed-off-by: Rohit Ner <rohitner@google.com>
Link: https://lore.kernel.org/r/20240220095637.2900067-1-rohitner@google.com
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/core')
| -rw-r--r-- | drivers/ufs/core/ufs-mcq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 8db81f1a12d5..768bf87cd80d 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -94,7 +94,7 @@ void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds) val = ufshcd_readl(hba, REG_UFS_MCQ_CFG); val &= ~MCQ_CFG_MAC_MASK; - val |= FIELD_PREP(MCQ_CFG_MAC_MASK, max_active_cmds); + val |= FIELD_PREP(MCQ_CFG_MAC_MASK, max_active_cmds - 1); ufshcd_writel(hba, val, REG_UFS_MCQ_CFG); } EXPORT_SYMBOL_GPL(ufshcd_mcq_config_mac); |